8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test
26 * @bug 8080976
27 * @summary Loop variant use in reduction should prevent vectorization
28 * @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement TestReductionWithLoopVariantUse
29 *
30 */
31
32 public class TestReductionWithLoopVariantUse {
33 static int m(int[] array) {
34 int c = 0;
35 for (int i = 0; i < 256; i++) {
36 c += array[i];
37 array[i] = c;
38 }
39 return c;
40 }
41
42 static public void main(String[] args) {
43 int[] array = new int[256];
44 int[] array2 = new int[256];
45 for (int j = 0; j < 256; j++) {
46 array2[j] = j;
47 }
48 for (int i = 0; i < 20000; i++) {
49 System.arraycopy(array2, 0, array, 0, 256);
50 int res = m(array);
51 boolean success = true;
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8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test
26 * @bug 8080976
27 * @summary Loop variant use in reduction should prevent vectorization
28 * @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement
29 * compiler.loopopts.superword.TestReductionWithLoopVariantUse
30 */
31
32 package compiler.loopopts.superword;
33
34 public class TestReductionWithLoopVariantUse {
35 static int m(int[] array) {
36 int c = 0;
37 for (int i = 0; i < 256; i++) {
38 c += array[i];
39 array[i] = c;
40 }
41 return c;
42 }
43
44 static public void main(String[] args) {
45 int[] array = new int[256];
46 int[] array2 = new int[256];
47 for (int j = 0; j < 256; j++) {
48 array2[j] = j;
49 }
50 for (int i = 0; i < 20000; i++) {
51 System.arraycopy(array2, 0, array, 0, 256);
52 int res = m(array);
53 boolean success = true;
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